Pump-box



(No Model.)

D. D. CASEY.

- PUMP BOX. .No..2 90,21 1. T PatentedDe0.18,'1883.

n. PETERS. Phow-unw mpmr. Walhingtnn. u c

UNITED STATES PATENT I OFFICE.

PUMP -Box.

SPECIFICATION forming. part of Letters Patent No. 290,211, dated December 18, 1883. Application filed March 23, 1883. (No model.)

To all whom it may concern:

Be it known that I, DENNIS D. CASEY, a citizen of the United States, residing at Springfield, in the county of Hampden and State of Massachusetts, have invented new and useful Improvements in Pump Boxes and Valves, of which the following is a specification.

This invention relates to improvements in hand-pump valves, the object being to provide an improved valve and valve-seat, and means for lifting said valve fromits seat when the pump-piston is driven downward, for the purpose of letting the water out of the pump and to provide an improved valve-box.

In the drawings forming part of the specification, Figure I is a sectional view of the lower end of a pu1np-barrel having a pumpvalve applied thereto embodying my improvements, the latter being shown therein in side elevation. Fig. II is a side elevation of the valve and its box, partly in section. Fig. III is a plan view of the valve-box, with the bail removed. Fig. IVis a plan view of the bottom, and Fig. V of .the top, ofthe valve.

In the drawings, A is the pump-barrel. D is the pump-box. B is the exterior leather packing on said box. h is a packing-nut. h is a perforated cross-bar or valvestem guide on said nut. 12 is the valve-disk. o is the valve-stem. s is a nut. x is a washer. w is an elastic valve-face ring. m is the raised valve-seat. c is the bail on box D. e e are stops on bail c\ d is the valve-lever. n is a lever-staple on valve 1).

The pump-barrel A is of the usual form, having its lower part made tapering, to receive the valve-box. The valve-box D is made tapering, to correspond with the shape of that part of the barrel Ain which it is fitted, as shown. It is common to make the surfacepacking of the box D of a strip of leather wound around it and secured thereon by nails or rivets. My box-packing B is formed up from a suitable piece of leather into a cup form. open at the bottom, and fitted to the box D, as shown in Fig. II. The lower end of the opening through box D is screwthreaded, and the packingnut h is fitted to screw therein. Said nut h has a flange thereon, between which and the lower end of box D the lower portionof the packing B is clamped to the box when nut h is screwed up,

bar, h, across the bottom of nut h forms a guide for the valve-stem 0. Onfthe'upper face of the valvebox D, .around the border of the opening through it, is formed the raised valveseat m, having a curved or half-round edge. The valve-disk o is provided with a downhanging stem, 0, which is screw-threaded and has a nut, s, fitted thereto, and the upper face of said disk has fixed thereupon, near one edge, the lever-staple n. The elastic ring w, which is made preferably of rubber, constitutes the face of the valve, and is secured to the under side of the disk 1; by the nut s and washer a: ma position concentric with the edge of the raised seat m. The box D has thereon the bail c, to theupper part of which is pivoted the valvelever d, one end of which passes through the staple n on the valve, and its opposite end projects above the crown of the bail 0. Two stops, 6 e, are provided on the inner sides of bail c, to govern the rise of the valve. The form of the seat at prevents any accumulation of sand between its edge and the ring-face of the valve, as is the case when a flat-faced valve is used and permitted to act on a fiat seat; and the forms of said ring-face w and seat m, together with the elastic nature of said ring,

' adapt them to so adjust themselves one to the other as to make a tight joint.

The construction of the valve-box and valve herein shown, whereby the latter is adapted to lift vertically quite clear from the valveseat, provides for a much more unobstructed water-passage through said box than when the valve is, as usual, hung on one side of the box, constituting a clapper-valve.

What I claim as my invention is In combination, the box D, having the raised seat m thereon, and the bail 0, provided with the stops 6 e, the packing nut h, having the guide h across it. the valve 22, provided with the stem 0 and staple n, and having the clastic ring-face w secured thereto, and the lever d, pivoted to said bail, substantially as set forth.

DENNIS D. CASEY.

WVitnesses: R. F. HYDE,

WM. H. OHAPIN. 

